19707860

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7759}}^1$

素因数の和:7895

約数の個数: 24

約数和(自身を含む): 41717760

約数和(自身を除く): 22009900

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7759, 15518, 31036, 38795, 77590, 155180, 985393, 1970786, 3941572, 4926965, 9853930, 19707860]

約数ペア:

[(1, 19707860), (2, 9853930), (4, 4926965), (5, 3941572), (10, 1970786), (20, 985393), (127, 155180), (254, 77590), (508, 38795), (635, 31036), (1270, 15518), (2540, 7759)]